Pac-Man is an arcade game developed by Namco and licensed for distribution in the U.S. by Midway, first released in Japan on May 22, 1980. Immensely popular in the United States from its original release to the present day, Pac-Man is universally considered as one of the classics of the medium, virtually synonymous with video games, and an icon of 1980s popular culture. Upon its release, the game became a social phenomenon that sold a bevy of merchandise and also inspired, among other things, an animated television series and music.
When Pac-Man was released, most arcade video games in North America were primarily space shooters such as Space Invaders, Defender, or Asteroids. The most visible minority were sports games that were mostly derivative of Pong. Pac-Man succeeded by creating a new genre and appealing to both genders. Pac-Man is often credited with being a landmark in video game history, and is among the most famous arcade games of all time. The character also appears in more than 30 officially licensed game spin-offs, as well as in numerous unauthorized clones and bootlegs. According to the Davie-Brown Index, Pac-Man has the highest brand awareness of any video game character among American consumers, recognized by 94 percent of them.
The player controls Pac-Man through a maze, eating pac-dots. When all dots are eaten, Pac-Man is taken to the next stage. Four ghosts (Blinky, Pinky, Inky and Clyde) roam the maze, trying to catch Pac-Man. If a ghost touches Pac-Man, a life is lost. When all lives have been lost, the game ends. Pac-Man is awarded a single bonus life at 10,000 points by default—DIP switches inside the machine can change the required points or disable the bonus life altogether.
Near the corners of the maze are four larger, flashing dots known as power pellets that provide Pac-Man with the temporary ability to eat the ghosts. The ghosts turn deep blue, reverse direction, and usually move more slowly when Pac-Man eats a power pellet. When a ghost is eaten, its eyes return to the ghost home where it is regenerated in its normal color. Blue ghosts flash white before they become dangerous again and the amount of time the ghosts remain vulnerable varies from one board to the next, but the time period generally becomes shorter as the game progresses. In later stages, the ghosts do not change colors at all, but still reverse direction when a power pellet is eaten.
In addition to Pac-dots and power pellets, bonus items, usually referred to as fruits (though not all items are fruits) appear near the center of the maze. These items score extra bonus points when eaten. The items change and bonus values increase throughout the game. Also, a series of intermissions play after certain levels toward the beginning of the game, showing a humorous set of interactions between Pac-Man and Blinky (the red ghost).
Initially, Pac-Mans enemies were referred to as monsters on the arcade cabinet, but soon became colloquially known as ghosts.
The ghosts are bound by the maze in the same way as Pac-Man, but generally move slightly faster than the player, although they slow down when turning corners and slow down significantly while passing through the tunnels on the sides of the maze (Pac-Man passes through these tunnels unhindered). Pac-Man slows down slightly while eating dots, potentially allowing a chasing ghost to catch him.Blinky, the red ghost, also speeds up after a certain number of dots are eaten (this number gets lower in higher levels).